Seasonal migration of the Yellow Sea Bottom Cold Water
The hydrographic observation data suggests that the bottom layer temperature decreasesfrom February to June frequently happened during recent 10 years in the southeastern cold tongueregion of the Yellow Sea.The seasonal evolution of bottom layer temperature indicates that the YellowSea Bottom Cold Water (YSBCW) in the northeast region outbreaks southward to the central andsouthern areas of the Yellow Sea during summer time.A high-resolution regional circulation model isset up to quantitatively investigate the seasonal migration,the possible source and the pathway of theYSBCW.The simulated results show that,in the interior of the cold tongue at 50 m depth,the temperature in June is lower than that in February.The temperature difference is 0.3°C in area-average,and in some area even larger than 0.8°C.Furthermore,the two-way Lagrangian particle tracking method (PTM) is used to quantitatively calculate the source and migration of the YSBCW.Thetrajectories of the modeled drifters show that the clod heavy upper layer water mass sinks into deeperlayers gradually with the southward movement since March to June.The meridional displacement is around 150 km during these four months.
YSBCW two-way Larangian particle tracking and deep advection
Bin Wang Naoki Hirose Katsumi Takayama Boon-Soon Kang
Department of Earth System Science and Technology, Interdisciplinary Graduate School of Engineering Department of Earth System Science and Technology, Interdisciplinary Graduate School of Engineering Research Institute for Applied Mechanics, Kyushu University, Kasuga, Japan
国际会议
The 17th Pacific -Asian Marginal Seas Meeting(第十七届太平洋与亚洲边缘海国际会议)
杭州
英文
649-655
2013-04-23（万方平台首次上网日期，不代表论文的发表时间）